TPR Systems R 52 resin is a medium-viscosity, transparent, solvent-free 2-component methacrylic resin that cures rapidly even at low temperatures if hardener is added. Its higher viscosity makes TPR Systems R 52 resin more suitable than TPR Systems R 51 resin for priming vertical and absorbent substrates with suffi cient strength.
TPR Systems R 52 resin is used as an adherent primer on concrete and cement substrates. The higher viscosity means that a thicker and more integral priming fi lm is achieved than with TPR Systems R 51 resin.
Advice on application
Once the substrate has been inspected, it normally needs to be pre-treated. The necessary quantity of hardener must be adjusted in light of the temperature of the building. For the exact quantities, please refer to the table “Hardener dosages”.
You must not dose less than the given quantity of hardening powder, as this will jeopardize the curing process.
You must also avoid overdosing the hardening powder, as this can likewise lead to serious curing problems.
If the pot life, within which good penetration of the substrate is guaranteed, is to be observed, appropriate batch quanti- ties should be estimated. The material must be applied as soon as the hardening powder has finished dissolving in the resin components.
TPR Systems R 52 resin must be applied evenly without leaving puddles by means of a paint roller or brush. If rubber blades are used, the surface must always be rolled with a paint roller afterwards. Matt and heavily absorbent patches must be reprimed wet in wet before hardening until the pores are closed up.
Resin consumption is about 0.4 kg/m2.
TPR Systems Filler QS 0.7 – 1.2 mm can be sprinkled loosely into the fresh primer coat.
In the case of subsequent coating with SILIKAL® RV 310 or RV 368 resin, SILIKAL® Filler QS 0.7 – 1.2 mm (0.2 – 0.5 kg/m2) must always be sprinkled in. TPR Systems R 52 resin must be completely cured before any further coat is applied.
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